my_name = 'Zed'                 #定义字符串变量
my_age = 25
my_height = 170
my_weight = 120

my_eyes = 'Black'

my_hair = 'Brown'

my_teeth = 'White'

print(f"Let's talk about {my_name}.") #print(f"")格式化输出的格式，{}变量的使用格式

print(f"He's {my_height} cm tall.") 

print(f"He's {my_weight} jin heavy.")

print(f"Actually that's not too heavy.")

print(f"He's got {my_eyes} eyes and {my_hair} hair.")

print(f"His teech are usually {my_teeth} depending on the coffee.")

total = my_age + my_height + my_weight  

print(f"If I add {my_age}, {my_height}, and {my_weight} I get {total}.")

#python中变量的输出，字符串的输出